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1000949 = 612269
BaseRepresentation
bin11110100010111110101
31212212001012
43310113311
5224012244
633242005
711336135
oct3642765
91785035
101000949
11624034
12403305
132907a1
141c0ac5
1514b89e
hexf45f5

1000949 has 6 divisors (see below), whose sum is σ = 1021410. Its totient is φ = 980880.

The previous prime is 1000931. The next prime is 1000969. The reversal of 1000949 is 9490001.

It can be written as a sum of positive squares in 3 ways, for example, as 208849 + 792100 = 457^2 + 890^2 .

It is not a de Polignac number, because 1000949 - 216 = 935413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3587 + ... + 3855.

It is an arithmetic number, because the mean of its divisors is an integer number (170235).

21000949 is an apocalyptic number.

It is an amenable number.

1000949 is a deficient number, since it is larger than the sum of its proper divisors (20461).

1000949 is an frugal number, since it uses more digits than its factorization.

1000949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 1000949 is about 1000.4743874783. The cubic root of 1000949 is about 100.0316233319.

The spelling of 1000949 in words is "one million, nine hundred forty-nine", and thus it is an aban number.

Divisors: 1 61 269 3721 16409 1000949